The following are brief descriptions of the utility library functions
which pertain to date conversion.
                   Table 37-10: Utility Date Functions
   ________________________________________________________________
  |                                                                |
  |    Function           Description                              |
  |================================================================|
  |   checkdate()  check the legality of a date.                   |
  |----------------------------------------------------------------|
  |  amiga2date()  calculate the date from a specified timestamp.  |
  |  date2amiga()  calculate the timestamp from a specified date.  |
  |________________________________________________________________|